As I set my kitchen timer, the warm scent of browning butter danced through the air, wrapping me in a comforting embrace. This little moment sparked the creation of my Chewy Oatmeal Sandwich Cookies with Brown Butter Cream Cheese Frosting. With perfectly soft and chewy oatmeal cookies filled with a rich, tangy frosting, each bite brings nostalgia and joy. Not only are these cookies a delightful treat to share, but they also come together quickly, making them a fantastic solution for any cookie cravings. The unique twist of brown butter adds a toasty depth, turning a classic snack into something extraordinary. So, are you ready to indulge in a cozy baking adventure that will leave your loved ones asking for seconds?
Why are Oatmeal Sandwich Cookies a must-try?
Delightful Flavor: With warm notes of cinnamon and sweet brown sugar, these cookies bring a cozy touch to your dessert table.
Unique Twist: The addition of brown butter not only elevates the flavor but also infuses a nutty aroma that makes your home smell heavenly.
Easy to Make: Even if you’re a novice baker, the straightforward steps ensure you’ll create a treat everyone will love.
Perfect for Sharing: These sandwich cookies are ideal for gatherings, just like my delicious Classic Italian Muffuletta Sandwich—both of these recipes will impress and satisfy!
Versatile Options: Feel free to try variations, such as swapping pumpkin puree for applesauce, to cater to your taste buds.
Irresistible Texture: The chewy oats paired with rich cream cheese frosting create a delightful contrast, making each bite truly indulgent!
Oatmeal Sandwich Cookies Ingredients
For the Cookies
• Unsalted Butter – Provides fat and moisture for a tender cookie. Use brown butter for added flavor.
• Brown Sugar – Adds sweetness and a deep, caramel-like flavor. Opt for dark brown sugar for the best taste.
• Pumpkin Puree or Egg – Acts as a moisture and binding agent. Using pumpkin adds a subtle flavor enhancement.
• Vanilla Extract – Provides aromatic flavor. Consider vanilla bean paste for a more intense taste.
• All-Purpose Flour – Gives structure to the cookies. Measure carefully to avoid overly dense cookies.
• Old-Fashioned Oats – Adds chewiness and texture. Be sure to use oats labeled as “old-fashioned” for best results.
• Baking Soda – A leavening agent that helps cookies rise slightly. Do not substitute with baking powder as it won’t work the same.
• Ground Cinnamon – Enhances flavor with its warm notes. Try pumpkin pie spice for a different twist, though flavors will vary.
• Fine Salt – Balances sweetness and enhances flavor. Avoid coarse salt to ensure it dissolves properly in the batter.
For the Frosting
• Cream Cheese – Adds a rich, creamy texture to the frosting. Full-fat cream cheese is recommended for the best consistency.
• Powdered Sugar – Sweetens and provides a smooth texture for the frosting. No substitutions are recommended for optimal results.
Step‑by‑Step Instructions for Oatmeal Sandwich Cookies
Step 1: Brown the Butter
Start by melting 1 cup of unsalted butter in a light-colored saucepan over medium heat. Stir constantly for about 5-6 minutes until the butter turns a rich golden brown and develops a nutty aroma. Once achieved, remove it from the heat and allow it to cool to room temperature for approximately 30 minutes.
Step 2: Make the Dough
In a large mixing bowl, cream together ½ cup of the cooled brown butter and dark brown sugar until the mixture is fluffy and well combined. Add in the pumpkin puree (or egg) and vanilla extract, mixing until smooth. This base will provide a flavorful foundation for your oatmeal sandwich cookies.
Step 3: Combine Dry Ingredients
In another bowl, sift together all-purpose flour, old-fashioned oats, baking soda, ground cinnamon, and fine salt. Gradually fold this dry mixture into your wet ingredients, stirring gently until just combined. Be careful not to over-mix, as we want to maintain the chewy texture of our oatmeal cookies.
Step 4: Scoop Cookies
Using a 1 tablespoon cookie scoop, portion the dough into small balls, creating about 32 dough balls in total. Place them on lined baking sheets, ensuring they are spaced about 1.5 inches apart to allow for spreading during baking. This step is crucial for evenly baked oatmeal sandwich cookies.
Step 5: Bake
Preheat your oven to 350°F (175°C). Once heated, bake the cookies for 8-9 minutes, or until the edges are set and the centers appear slightly puffy. After baking, let them cool on the baking sheet for 10 minutes before transferring them to wire racks to completely cool. This cooling time helps them achieve the perfect chewy texture.
Step 6: Prepare Frosting
In a mixing bowl, beat together the remaining brown butter with cream cheese until the mixture is smooth and creamy. Gradually mix in powdered sugar and a dash of vanilla extract until you achieve a light, fluffy frosting. This creamy frosting will elevate your oatmeal sandwich cookies to another level of deliciousness.
Step 7: Assemble Cookies
To create the sandwich cookies, pair up two similar-sized cookies. Pipe a generous amount of the cream cheese frosting on one cookie and gently press the other cookie on top to create a delightful sandwich. You can enjoy these oatmeal sandwich cookies immediately or store them in an airtight container for later.
Make Ahead Options
These Oatmeal Sandwich Cookies are perfect for meal prep, allowing you to savor delicious treats with minimal last-minute effort! You can refrigerate the prepared cookie dough for up to 3 days before baking, which enhances the flavors and makes your baking day quicker. Additionally, the assembled cookies can be stored in an airtight container for up to 5 days in the refrigerator—just ensure they’re sealed to keep them fresh and chewy. To serve, simply remove the cookies from the fridge and let them come to room temperature before indulging for that same delightful flavor and texture as when they were first baked. Enjoy the comforting taste without the rush!
Expert Tips for Oatmeal Sandwich Cookies
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Butter Wisely: Ensure your butter is browned correctly. Watch closely for the nutty aroma and golden color; under-browning will lack flavor.
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Mix Gently: When combining the dry ingredients with the wet ones, mix until just combined. Over-mixing can lead to tough cookies—aim for that tender texture!
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Uniform Sizes: Using a cookie scoop helps create uniform dough balls for even baking. This is key for achieving perfectly baked oatmeal sandwich cookies.
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Don’t Over-bake: To keep the cookies chewy, remove them from the oven while they’re still soft in the center. They will firm up as they cool.
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Flavor Enhancements: Experiment with add-ins like nuts or chocolate chips for an extra pop of flavor and texture in your sandwich cookies.
Oatmeal Sandwich Cookies Variations & Substitutions
Feel free to adapt this delightful recipe to your taste and preferences; each variation adds its own lovely twist to the cookies!
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Dairy-Free: Use coconut oil in place of unsalted butter and non-dairy cream cheese for the frosting to make it dairy-free. They’ll still be incredibly tasty!
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Gluten-Free: Substitute all-purpose flour with a gluten-free 1:1 baking flour. This way, everyone can enjoy these chewy delights without any worries.
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Spiced Up: Add a pinch of nutmeg or cardamom along with the cinnamon for a unique warm spice blend that elevates the flavor.
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Nutty Crunch: Fold in 1 cup of chopped nuts, such as walnuts or pecans, into your dough for a delightful crunch amidst the chewy cookies.
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Chocolate Lovers: Incorporate 1/2 cup of mini chocolate chips into the batter for an irresistible chocolatey surprise hidden in your oatmeal sandwich cookies.
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Fruit Twist: Swap pumpkin puree for applesauce or mashed bananas to bring a fruity twist to the cookies. With the right spices, this variation can create a delightful new flavor!
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Frosting Fun: Experiment with flavored cream cheese frosting, such as lemon or maple, to pair beautifully with the oats and spices. It’s a fun way to switch things up!
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Joyful Heat: For those who like a little kick, add a dash of cayenne pepper or chili powder to the batter for a sweet and spicy experience that’s unexpectedly delightful!
As you embark on this cozy baking journey, consider pairing these cookies with a warm drink for a perfect afternoon treat! You might also enjoy my Pumpkin Cheesecake Cookies or Strawberry Crunch Cookies for more delightful options. Happy baking!
Storage Tips for Oatmeal Sandwich Cookies
Airtight Container: Keep assembled oatmeal sandwich cookies in an airtight container at room temperature for up to 3 days to maintain their freshness and softness.
Refrigeration: If you plan to enjoy the cookies over a longer period, refrigerate them for up to a week. Just remember that the frosting may become firmer.
Freezing: For prolonged storage, unfilled oatmeal cookies can be frozen for up to a month. Place them in a freezer-safe bag, removing excess air to prevent freezer burn.
Reheating: To enjoy them warm, gently microwave the cookies for 10-15 seconds. They’ll regain some softness and the delightful flavors will be enhanced!
What to Serve with Chewy Oatmeal Sandwich Cookies?
Indulging in these delightful cookies is wonderful, but pairing them with the right accompaniments takes the experience to a whole new level.
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Creamy Vanilla Ice Cream: The cool, creamy texture of vanilla ice cream complements the chewy cookies perfectly, creating a delightful contrast that melts in your mouth. A scoop alongside your cookie sandwich enhances both flavors beautifully.
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Warm Milk: A classic companion for cookies, warm milk adds a comforting, nostalgic touch that makes every bite feel like a hug. It’s soothing and nourishing, perfect for an afternoon treat.
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Coffee or Espresso: The rich, bold flavors of coffee or espresso balance the sweetness of the cookies, making for an adult-friendly treat. For a more indulgent option, pair with a splash of cream to elevate the experience.
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Chai Tea: With its warm spices, chai tea mirrors the flavors of cinnamon in the cookies, creating a harmonious pairing. Sipping this aromatic tea while enjoying a cookie is a cozy delight.
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Fruit Salad: A fresh fruit salad provides a refreshing contrast, adding brightness and acidity to balance the rich cream cheese frosting. Think berries, citrus, or even apples for a crisp texture.
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Chocolate Milkshake: Dive into a nostalgic dessert pairing! The thick, chocolatey goodness of a milkshake creates a fun experience that brings out the cookie’s sweet profile, making it a perfect treat for kids and adults alike.
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Caramel Sauce: Drizzling warm caramel sauce over your cookie adds a luxurious sweetness and an extra layer of indulgence. The sticky, gooey texture makes each bite even more decadent.
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Homemade Hot Cocoa: A cup of rich, homemade hot chocolate is a cozy pairing, especially on chilly days. Top it with whipped cream, and you’ve got a match made in dessert heaven.
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Apple Cider: Especially during fall, a warm cup of spiced apple cider harmonizes beautifully with the spices in the cookies, enhancing the autumnal flavors that evoke feelings of comfort and warmth.
Oatmeal Sandwich Cookies Recipe FAQs
What type of oats should I use for oatmeal sandwich cookies?
For the best texture and chewiness in your oatmeal sandwich cookies, it’s essential to use old-fashioned oats. They provide that nostalgic, hearty bite that complements the softness of the cookie. Avoid instant oats as they can create a mushy texture.
How long can I store oatmeal sandwich cookies?
You can keep your assembled oatmeal sandwich cookies in an airtight container at room temperature for up to 3 days. If you want them to last longer, refrigerate them for up to a week. Just be aware that the frosting may harden slightly in the fridge.
Can I freeze oatmeal sandwich cookies?
Absolutely! For optimum freshness, you can freeze the unfilled oatmeal cookies for up to a month. To freeze, simply place them in a freezer-safe bag, making sure to remove as much air as possible to avoid freezer burn. When you’re ready to enjoy, let them thaw at room temperature and add the frosting afterward.
What should I do if my cookie dough is too sticky?
If you find your cookie dough is too sticky to scoop, it could be due to the temperature of the ingredients or humidity in your kitchen. Chill the dough in the refrigerator for about 30 minutes to an hour. This cooling step helps firm up the melted butter and make the dough easier to work with.
Can I use substitutions for dietary restrictions?
Certainly! If you or someone you’re serving has dietary restrictions, you can substitute the pumpkin puree with applesauce for a similar moisture content without the pumpkin flavor. Additionally, for a gluten-free version, consider using a 1:1 gluten-free baking flour to keep the chewy texture while accommodating dietary needs.

Decadent Oatmeal Sandwich Cookies with Creamy Frosting
Ingredients
Equipment
Method
- Start by melting 1 cup of unsalted butter in a light-colored saucepan over medium heat. Stir constantly for about 5-6 minutes until the butter turns a rich golden brown and develops a nutty aroma. Once achieved, remove it from the heat and allow it to cool to room temperature for approximately 30 minutes.
- In a large mixing bowl, cream together ½ cup of the cooled brown butter and dark brown sugar until the mixture is fluffy and well combined. Add in the pumpkin puree (or egg) and vanilla extract, mixing until smooth.
- In another bowl, sift together all-purpose flour, old-fashioned oats, baking soda, ground cinnamon, and fine salt. Gradually fold this dry mixture into your wet ingredients, stirring gently until just combined.
- Using a 1 tablespoon cookie scoop, portion the dough into small balls, creating about 32 dough balls in total. Place them on lined baking sheets, ensuring they are spaced about 1.5 inches apart.
- Preheat your oven to 350°F (175°C). Once heated, bake the cookies for 8-9 minutes, or until the edges are set and the centers appear slightly puffy. After baking, let them cool on the baking sheet for 10 minutes before transferring them to wire racks.
- In a mixing bowl, beat together the remaining brown butter with cream cheese until the mixture is smooth and creamy. Gradually mix in powdered sugar and a dash of vanilla extract.
- To create the sandwich cookies, pair up two similar-sized cookies. Pipe a generous amount of the cream cheese frosting on one cookie and gently press the other cookie on top.
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